12c新特性 在线操作数据文件

SQL> alter database datafile 8 offline;
alter database datafile 8 offline
*
ERROR at line 1:
ORA-01145: offline immediate disallowed unless media recovery enabled

SQL> archive log list;
Database log mode        No Archive Mode   --<<<<<非归档
Automatic archival        Disabled
Archive destination        USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     517
Current log sequence        519

SQL> ALTER DATABASE MOVE DATAFILE ‘/refresh/home/app/oracle/oradata/orcl/users01.dbf‘ to ‘/refresh/home/app/oracle/oradata/orcl/users02.dbf‘ ;
 
Database altered.

SQL> ALTER DATABASE MOVE DATAFILE ‘/refresh/home/app/oracle/oradata/orcl/users02.dbf‘ to ‘/refresh/home/app/oracle/oradata/orcl/users01.dbf‘ keep;  --<<keep 原有数据文件
 
Database altered.
 
SQL> host ls -l /refresh/home/app/oracle/oradata/orcl/user*
-rw-r----- 1 oracle oracle 352591872 Dec 17 07:19 /refresh/home/app/oracle/oradata/orcl/users01.dbf
-rw-r----- 1 oracle oracle 352591872 Dec 17 07:19 /refresh/home/app/oracle/oradata/orcl/users02.dbf

SQL> ALTER DATABASE MOVE DATAFILE ‘/refresh/home/app/oracle/oradata/orcl/users01.dbf‘ to ‘/refresh/home/app/oracle/oradata/orcl/users02.dbf‘  ;
ALTER DATABASE MOVE DATAFILE ‘/refresh/home/app/oracle/oradata/orcl/users01.dbf‘ to ‘/refresh/home/app/oracle/oradata/orcl/users02.dbf‘
*
ERROR at line 1:
ORA-01119: error in creating database file
‘/refresh/home/app/oracle/oradata/orcl/users02.dbf‘
ORA-27038: created file already exists
Additional information: 1
 
SQL> ALTER DATABASE MOVE DATAFILE ‘/refresh/home/app/oracle/oradata/orcl/users01.dbf‘ to ‘/refresh/home/app/oracle/oradata/orcl/users02.dbf‘ reuse  ;
 
Database altered.
 
SQL> host ls -l /refresh/home/app/oracle/oradata/orcl/user*
-rw-r----- 1 oracle oracle 352591872 Dec 17 07:23 /refresh/home/app/oracle/oradata/orcl/users02.dbf
没有使用keep ，user01.dbf已经删除了。

ALTER DATABASE MOVE DATAFILE ‘/u01/oracle/rbdb1/user1.dbf‘  TO ‘+DG1/data/orcl/datafile/user1.dbf‘;
ALTER DATABASE MOVE DATAFILE ‘+DG1/data/orcl/datafile/user1.dbf‘ TO ‘+DG2/data/orcl/datafile/user1.dbf‘;